Unreal Engine Issues

Cinematic viewport transform controls remain after switching back to the default viewport

Cinematic viewport transform controls remain after switching back to the default viewport. ...

Slow response on clicking on InstancedStaticMeshComponent with many elements when using IME

When clicking on InstancedStaticMeshComponent with many elements, Editor memory usage increases and editor freezes until the operation is finished. The wait and memory usage get much worse when usin ...

Particles emit from corrupted positions when spawning from cloth vertex

When spawning particles from skeletalMesh vertices(using Skeleteal Vert/Surf Location), if the specified mesh is a cloth, some particles appear away from the mesh itself. This happens in 4.16 and 4. ...

[CrashReport] UE4Editor_PropertyEditor!FDetailCategoryImpl::GenerateNodeWidget()

This is a trending crash in the 4.17 previews. Unfortunately users have not provided any descriptions of their actions when the crash occurred. Source Context 557 TSharedRef<ITableRow> FDe ...

Crash when launching a packaged project where a code class gets a reference to a Blueprint widget that contains an instance of a Blueprint struct

A packaged project will crash on launch if a code class uses ConstructorHelpers::FClassFinder to get a reference to a Blueprint Widget that contains a Blueprint struct variable. Disabling EDL in the ...

Editor crashes if you remove cloth from a mesh with a section selected and then close and reopen the mesh

The name of the Structure tab in the Struct editor doesn't match how it's listed in the Window menu

In the Struct editor, there's a discrepancy on the name of the main Structure tab. The tab reads "Structure", but in the Window menu, it's listed as "Member Variables". ...

Renaming Parent component to same name as a component in child causes crash from child blueprint

Renaming Parent component to the same name as a component in the child blueprint causes a crash from child blueprint when you press enter. When you reopen the project from the crash, the child bluep ...

No device profile detection for iPad Pro 10.5"

There's no device profile for iPadPro 10.5". It picks up other rendering settings properly from the iPadPro family. ...

Renaming a Sequencer spawnable actor in the World Outliner will revert on save

Renaming a Sequencer spawnable actor in the World Outliner will revert back to the old name on save. Not a regression because Sequencer spawnable actors in 4.16 didn't show in the World Outliner. ...